When the Webtatic EL6 repository was being created, I chose to change the format of the repository so that it would no longer use the same package names as CentOS/RHEL base repositories. This is because the previous Webtatic 5 repository had be installed with enabled=0 to avoid accidental unwanted upgrades, and the new structure meant that Webtatic EL6 could be enabled by default.

This has now been rolled out for CentOS/RHEL 5.x with the new Webtatic EL5.1 repository. The new repository can still be used in conjunction with Webtatic 5 repository.

The Webtatic 5 repository (the older one), will still be maintained, including updates to existing packages, but any new packages will be placed in Webtatic EL5.1

With this change, Webtatic will now support PHP 5.4 packages on CentOS/RHEL 5, using the php54w naming used in Webtatic EL6. Along with this, Nginx 1.2 is also available, along with existing MySQL 5.5 and 5.1 packages.